Geometry Sec 1.5/1.6 Worksheet

Front

What are adjacent angles?

Back

Adjacent angles are two angles that share a common vertex and a common side but do not overlap.

Front

What are complementary angles?

Back

Complementary angles are two angles whose measures add up to 90 degrees.

Front

If two angles are complementary and one angle measures 30 degrees, what is the measure of the other angle?

Back

60 degrees.

Front

What is the sum of the interior angles of a triangle?

Back

The sum of the interior angles of a triangle is always 180 degrees.

Front

If one angle of a triangle measures 90 degrees, what type of triangle is it?

Back

It is a right triangle.

Front

What is the measure of each angle in an equilateral triangle?

Back

Each angle in an equilateral triangle measures 60 degrees.

Front

Define vertical angles.

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always equal.

Front

If two angles are vertical angles and one measures 45 degrees, what is the measure of the other angle?

Back

45 degrees.

Front

What is the relationship between the angles in a linear pair?

Back

Angles in a linear pair are supplementary, meaning their measures add up to 180 degrees.

Front

If one angle in a linear pair measures 110 degrees, what is the measure of the other angle?

Back

70 degrees.